Car-pusher



-(N0 Model.)

J. PENNYOOOKQ CAR PUSHER No. 250,168. Patented Nov. 29,1881.

UNITED STATES PATENT OFFICEQ JOHN PENNYOOOK, OF MILWAUKEE, WISCONSIN.

,CAR-PUSHER.

SPECIFICATION forming part of Letters Patent No. 250,168, dated November29, 1881,

Application filed September 27, 1881. (No model.)

To all whom it may concern:

Be it known that I, JOHN PENNYOOOK, a citizen of the United States,residing at Milwaukee, in the county of Milwaukee and State ofWisconsin, have invented new and useful Improvements in Oar-Pushers, ofwhich the following is a specification.

The object of my invention is a machine for pushing railroad and othercars from one position to another. by means of a powerful mechanism,giving a steady and regular motion in a forward direction along a trackor upon a level surface, which will be more fully illustrated byreferring to the accompanying drawings, in which Figure 1 is a sectionalelevation. Fig. 2 is a cross-section through S H. Fig. 3 gives a fullview (side elevation.) Fig. 4 is a back elevation of S H.

Similar letters refer to the similar parts throughout the several views.

In Fig.1, as above stated, the car-pusher is represented in a sectionalelevation, the stem D embracing the top part, O, cont-aining thebevel-gears b c, and the lower part, E, containing the endless Worm Sand the combined worm-gear and friction-wheel H. The base part E is acasing with an oblong opening, with sides projecting out to form thebearings for the pin n. Upon the inner side of said opening are locatedthe endless worm S and the combined worm and friction wheel H. Saidwheel H is peculiarly constructed, having a worm-gear, r, on its innersurface, with two flanges,pp, extending out from the center and uponeach side of the worm-gear, forming aV. Upon the inner side oftheflanges 191) are cast projection-strips at equal distance apart, and soplaced that the strips on the one side of flange will come betweenthe,corresponding strips on the opposite flange. For the purpose oftaking a firm hold of the rail R, as shown in Fig. 4, to prevent thecar-pusher from slipping backward, similar projections are on the outeredges of-said flanges p p, and for the same purpose when the machine isused upon a wooden floor or level surface. The wheel H revolves looseupon the pin ff and gears to the oonvolutions of an endless worm, S, onthe lower part of rod d, the rod (1 projecting from the top part, 0,straight down through the stem D, resting on the shoulder K, andterminating in bearing an at the bottom end, F, arranged for thatpurpose. The driving-shaft ffrestsin bearings 0 0 upon each side of theupper chamber, 0. Upon the end of shaft f is the handle a, properlyfastened. On the same shaftff, and inside of the chamber 0, is abevel-gear, b, firmly secured. The bevel gear I) communicates with thebevel-gear c, which is firmly secured to the top end of shaft (1, asillustrated in the drawings. The cover 2 is for the purpose of incasingthe bevel-gears b c and formiu g a bearing for the shaft f f.

the endless worm S, worm-gear and frictionwheel H upon a level plain, t.

Fig. 3 is an end view of the worm S, worm and friction wheel H restingupon the rail B.

Fig. 4 shows the car-pusher in full view. On the top end is anangle-projection, A, bearing against the car, with extension-bar B,upper chamber, 0, stem D, lower casing, E, foot-rest e, and combinedWorm and friction Wheel H, resting upon the rail R, between the flan gesp p.

The operation of the carpusher will be fully understood in theillustration at Fig. 1., which represents a sectional view of myinvention, showing all the interior arrangements, as before explained.Fig. 4 shows the car-pusher in working position, with theangle-projection A against the 'end of car and the frictionwheel Hresting on the rail R, between the flanges pp. By turning the handle aon the drivingshaft ff, as shown in Fig. 1, motion is communicatedthrough the bevel-gears I) 0 to the rod d, extending down through D toan endless worm, S, gearing into the worm-gear, giving a steady forwardrotating motion to the friction-wheel H, resting on the rail R, whichpressure moves the car-pusher and car in a forward direction.

Having thus described my invention fully in the foregoing specification,I claim as new and desire to secure by Letters Patent of the UnitedStates- 1. Acombined worm-gearandfriction-wheel, H, with their relativeprojections on the inner sides and outer flanges, p p, as shown anddescribed, for the purpose set forth.

2. The rod d, guided in its upper part at w Fig.2 represents a sectionalelevation through ICO and fastened in the lower part between thecombinationwith the other parts, so constructcollars K K, and having anendless worm, S, ed,l0cated,and operated as and for the purpose 10 011the lower part, and so arranged that the shown and described.convolutions ear with the worm-gear in the 5 friction-wheel H,substantially as described, JOHN PENNYCOOK' for the purpose set forth.Witnesses:

3. The stem D, with upper casing, 0, lower ALEX; CHRISTIE, chamber, E,neck 13, and angle-bearing A, in CHAS. W. BLUM.

